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Invention Grant
US08210829B2 Two-stage rotodynamic blood pump with axially movable rotor assembly for adjusting hydraulic performance characteristics 有权
具有轴向移动转子组件的两级旋转动力血泵用于调节液压性能特征

Two-stage rotodynamic blood pump with axially movable rotor assembly for adjusting hydraulic performance characteristics
Abstract:
A pump (10) includes a housing, a stator (20) supported in the housing, and a rotor assembly (30). The rotor assembly (30) includes a rotor (32) supported in the housing for rotation relative to the stator (20) about an axis (12). The rotor assembly (30) also includes a first impeller (34) operatively coupled to a first axial end of the rotor (32) for rotation with the rotor about the axis (12). The rotor assembly further includes a second impeller (36) operatively coupled to a second axial end of the rotor (32), opposite the first axial end, for rotation with the rotor about the axis (12). The rotor assembly (30) is movable along the axis (12) relative to the housing to adjust hydraulic performance characteristics of the pump (10).
Abstract(Chinese):

泵（10）包括壳体，支撑在壳体中的定子（20）和转子组件（30）。 转子组件（30）包括支撑在壳体中以绕轴线（12）相对于定子（20）旋转的转子（32）。 转子组件（30）还包括可操作地联接到转子（32）的第一轴向端部的第一叶轮（34），用于使转子围绕轴线（12）旋转。 转子组件还包括可操作地联接到转子（32）的与第一轴向端相对的第二轴向端的第二叶轮（36），用于使转子绕轴线（12）旋转。 转子组件（30）可相对于壳体沿着轴线（12）移动，以调节泵（10）的液压性能特性。

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